WISE can not make a MST for the MSI that comes with the Office products. I was able to create an unattended install for Visio 2003 by using the Setup.ini that is located deeper in the CD at %ROOT%\FILES\SETUP. I copied the original setup.ini in case I needed to fall back to the original settings. This setup.ini is used by the setup.exe in the root of the Visio CD to configure the options on the install. The setup.ini has much of the information you need already there. You only have to un-rem lines, edit some and add others. I used or added the following lines for my install.
USERNAME=Central DuPage Health
COMPANYNAME=Central DuPage Health
PIDKEY="Your Key code without the dashes"
What some of these options do can be found in a document on the MS web site at
http://office.microsoft.com/en-us/assistance/HA011364681033.aspx (tested on 3/16/2005)
To install I run the following.
%INST%\setup.exe /noreboot /qb!-
The Visio package will install fully with all options and without user intervention. If you need to customize the install use Microsoft's Office 2003 Recourse Kit that was mentioned by an earlier post. Use the Custom Install Wizard option.